PC film stretching device capable of adjusting tension control

Abstract

The utility model discloses a PC (Polycarbonate) film stretching device capable of adjusting tension control, which relates to the technical field of PC film stretching and comprises a rack, driving guide components loaded at two ends of the rack, a suspension used for mounting and adjusting a film roll, and a tension adjusting component arranged above the middle position of the rack, the driving guide assembly comprises a guide roller, a transmission disc fixed to the end of the guide roller, a driving disc connected with the transmission disc through a belt, and a motor connected with the driving disc. The suspension comprises a traction frame, a shaft rod movably arranged at the outer end of the traction frame in a penetrating mode, positioning frames symmetrically fixed to the peripheral side of the shaft rod, spring limiting pieces fixed to the inner side ends of the positioning frames and an air cylinder used for adjusting the angle of the traction frame relative to the machine frame, and the shaft rod is sleeved with the film roll. And the tension adjusting assembly is arranged between the driving guide assemblies. Through the arrangement of the tension adjusting assembly, the problems of wrinkling, uneven stretching and the like of the film in the machining process are solved, and the quality and the consistency of final products are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to PC membrane stretching technical field, especially a kind of PC membrane stretching device of adjustable tension control. BACKGROUND

[0002] PC membrane, i.e. polycarbonate film, is a kind of thermoplastic engineering plastic film with excellent physical properties. It has high strength, high transparency, impact resistance, high temperature resistance and other characteristics, and is widely used in electronic and electrical appliances, automobile industry, medical devices and other fields. PC membrane stretching is an important process in the manufacturing process, which can change the mechanical properties of PC membrane, such as increasing strength and rigidity, improving dimensional stability, etc.

[0003] In the traditional PC membrane stretching process, due to the lack of effective tension adjustment mechanism, it is difficult to realize fine adjustment of film tension, which may lead to unstable product quality, such as wrinkles, uneven thickness, etc. The driving guide system in some old stretching devices cannot guarantee the stability and consistency of PC membrane in the transmission process, which may cause film slipping or deviation.

[0004] Therefore, we provide a kind of PC membrane stretching device of adjustable tension control to solve the above problems. CONTENT OF UTILITY MODEL

[0005] The utility model aims at providing a kind of PC membrane stretching device of adjustable tension control, by setting tension adjustment assembly to adjust tension in PC membrane stretching process, solve the problem of lack of effective tension adjustment mechanism in the existing PC membrane stretching process, leading to unstable product quality.

[0006] To solve the above technical problems, the utility model is realized by the following technical scheme:

[0007] The utility model is a kind of PC membrane stretching device of adjustable tension control, including rack, drive guide assembly loaded in the both ends of rack, suspension for film roll installation adjustment, and tension adjustment assembly arranged above the middle position of rack;The drive guide assembly includes guide roller installed in the top of the both ends of rack through bearing seat, transmission disc fixed to the end of guide roller, driving disc connected with transmission disc through belt, and motor connected with driving disc;The suspension includes traction frame installed above the both ends of rack, shaft rod movably arranged in the outer end of traction frame, positioning frame fixed symmetrically on the side of shaft rod, spring limiting piece fixed to the inner end of positioning frame, and air cylinder for angle adjustment of traction frame relative to rack, the film roll is sleeved on the outside of shaft rod;The tension adjustment assembly is arranged between a pair of drive guide assemblies, and PC membrane is arranged between the compression rollers included in tension adjustment assembly.

[0008] The utility model further sets up, drive direction subassembly still includes the mounting plate fixed in the lower part of both ends side surface of rack, motor is fixed in the inside of mounting plate.

[0009] The utility model further sets up, the main part tail of cylinder is movably arranged in the middle transverse of both ends of rack, and the telescopic end of cylinder is movably connected with the inner edge lower side of traction frame through connecting piece.

[0010] The utility model further sets up, the rubber pad is set up in spring positioner end, and the rubber pad is attached with the film roll circumference side.

[0011] The utility model further sets up, the tension adjusting assembly still includes the side plate fixed in the intermediate position of both sides of rack, the mounting seat equidistant fixed in the outside of side plate, the shaft seat movably arranged in the inside of mounting seat and the screw rod for shaft seat lifting control, the shaft seat is matched with the both ends of compression roller.

[0012] The utility model further sets up, the handle is equipped with in the top end of screw rod, and the lower part of screw rod is provided with mounting seat top connecting shaft seat.

[0013] The utility model further sets up, the compression roller is parallel, and the height of compression roller is lower than the guide roller.

[0014] The utility model has the following beneficial effects:

[0015] 1, the utility model discloses a tension adjusting assembly is set up, and the shaft seat is driven under the action of the handle's screw rod, and along with the mounting seat lifting, and then realizes the height adjustment of compression roller, completes the tension adjustment of the PC film of flat laying, realizes the fine adjustment of the tension of PC film according to different production needs, prevents the film from appearing wrinkle, uneven stretching etc.

[0016] 2, the utility model sets up the suspension frame and is equipped with cylinder, can realize the dynamic adjustment of angle, so that the equipment can be more flexible to adapt to different specifications and the PC film processing task of requirement, increases the application range and flexibility of equipment, and the telescopic end of cylinder will produce the thrust / tension to traction frame in the process of dynamic change, realizes the angle adjustment of traction frame, and at the same time, the angle of cylinder main body itself will change along with it, avoids causing motion interference. DRAWINGS

[0017] Figure 1 It is the overall structure schematic diagram of a kind of adjustable tension control PC film stretching device.

[0018] Figure 2 It is the drive direction subassembly installation schematic diagram in a kind of adjustable tension control PC film stretching device.

[0019] Figure 3 It is an overall structure front view of a PC film stretching device with adjustable tension control.

[0020] Figure 4 It is a suspension structure schematic view in a PC film stretching device with adjustable tension control.

[0021] In the drawings, the components represented by each reference numeral are listed as follows:

[0022] 100, rack; 200, suspension; 201, traction frame; 202, shaft rod; 203, positioning frame; 204, spring limiting piece; 205, air cylinder; 300, driving and guiding assembly; 301, guiding roller; 302, mounting plate; 303, belt; 304, driving disc; 305, transmission disc; 306, motor; 400, tension adjusting assembly; 401, side plate; 402, mounting seat; 403, screw rod; 404, compression roller; 405, shaft seat; 500, film roll. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] EMBODIMENT

[0025] Please refer to Figures 1-4 The present application is a PC film stretching device with adjustable tension control, which comprises a rack 100, driving and guiding assemblies 300 loaded on both ends of the rack 100, a suspension 200 for film roll 500 installation and adjustment, and a tension adjusting assembly 400 arranged above the middle position of the rack 100. The driving and guiding assembly 300 comprises guiding rollers 301 mounted on the top of both ends of the rack 100 through bearing seats, transmission discs 305 fixed on the end portions of the guiding rollers 301, driving discs 304 connected with the transmission discs 305 through belts 303, and motors 306 connected with the driving discs 304. The suspension 200 comprises traction frames 201 mounted above both ends of the rack 100, shaft rods 202 movably arranged on the outer end portions of the traction frames 201, positioning frames 203 symmetrically fixed on the circumferential sides of the shaft rods 202, spring limiting pieces 204 fixed on the inner end portions of the positioning frames 203, and air cylinders 205 for angle adjustment of the traction frames 201 relative to the rack 100. The film roll 500 is sleeved on the outer portion of the shaft rod 202. The tension adjusting assembly 400 is arranged between a pair of the driving and guiding assemblies 300, and the PC film is arranged between the compression rollers 404 included in the tension adjusting assembly 400.

[0026] The rack 100 serves as the basic structure of the whole device, and is used for supporting and mounting the whole device; the driving and guiding assembly 300 provides conveying power for the stretching of the PC film, and ensures the stability and consistency of the PC film in the transmission process, thereby reducing the phenomenon of film slipping or deviation; the suspension 200 is used for mounting the film roll 500, and can be adjusted in angle by the air cylinder 205, and cooperates with the tension adjusting assembly 400 to adjust the tension of the PC film, the tension adjusting assembly 400 is used for finely adjusting the tension of the PC film according to different production requirements, and helps to improve the quality and consistency of the final product; and in the stretching process, the PC film is pulled out from one of the film rolls 500, and then sequentially passes through a pair of guide rollers 301, a plurality of compression rollers 404 and another pair of guide rollers 301, and is wound by the other film roll 500, so as to complete the stretching and winding of the PC film. In order to facilitate the winding of the PC film, the film roll 500 generally needs to be equipped with a rotary drive, which is not limited further herein.

[0027] Specifically, the tension adjusting assembly 400 further comprises side plates 401 fixed to the middle positions of the two sides of the rack 100, mounting seats 402 fixed equidistantly outside the side plates 401, shaft seats 405 movably arranged inside the mounting seats 402, and screw rods 403 for lifting control of the shaft seats 405. The shaft seats 405 are matched with the two ends of the compression rollers 404, the top ends of the screw rods 403 are provided with handles, the lower parts of the screw rods 403 pass through the top parts of the mounting seats 402 to connect the shaft seats 405, the side plates 401 are used for mounting and fixing a plurality of mounting seats 402, and the shaft seats 405 are used for positioning the compression rollers 404. The shaft seats 405 are lifted along the mounting seats 402 under the driving action of the screw rods 403 provided with handles, so as to realize the height adjustment of the compression rollers 404 and complete the tension adjustment of the laid PC film.

[0028] The main body tail of the air cylinder 205 is movably arranged at the middle transverse position of the two ends of the rack 100, and the telescopic end of the air cylinder 205 is movably connected with the inner edge lower side of the traction frame 201 through a connecting piece. In the process of dynamic change, the telescopic end of the air cylinder 205 will generate a pushing force / pulling force on the traction frame 201, so as to realize the angle adjustment of the traction frame 201. At the same time, the angle of the main body of the air cylinder 205 will also change, so as to avoid motion interference. The end of the spring limiting piece 204 is provided with a rubber pad, the rubber pad is attached to the circumferential side of the film roll 500, realizes the position limiting of the film roll 500, and can also buffer and protect the film roll 500, so as to avoid the PC film from being wrinkled due to large shaking in the stretching process.

[0029] Further, the driving and guiding assembly 300 further comprises a mounting plate 302 fixed to the lower part of the two ends of the frame 100, and the motor 306 is fixed to the inner side of the mounting plate 302, and the mounting plate 302 is used for mounting and fixing the motor 306, and the motor 306 is connected with the external power supply and the control system through the connecting line.

[0030] The operation process of the embodiment is as follows:

[0031] The PC film roll 500 to be processed is sleeved outside the shaft rod 202 of the suspension 200, and it is ensured that the film roll 500 is fixed by the spring limiting piece 204, and the rubber pad is attached to the periphery of the film roll 500 to avoid wrinkles in the stretching process. The angle of the traction frame 201 is adjusted by the cylinder 205 to facilitate the correct threading path of the PC film.

[0032] Starting from one film roll 500, the PC film is sequentially threaded through a pair of guide rollers 301, a plurality of pressing rollers 404 and another pair of guide rollers 301, and finally reaches the other film roll 500 for winding, so as to ensure that the PC film smoothly passes between the guide rollers 301 and the pressing rollers 404. Then, the motor 306 in the driving and guiding assembly 300 is started, and the transmission disc 305 and the guide roller 301 are driven to rotate by the belt 303, so as to provide conveying power for the PC film.

[0033] The height of the shaft seat 405 is adjusted by rotating the screw rod 403 with the handle, so as to change the position of the pressing roller 404, and thus the tension of the PC film is finely adjusted. Different production requirements may require different tension settings to ensure product quality and consistency. During the entire stretching and winding process, the state of the PC film (such as flatness, tension, etc.) is continuously monitored, and the tension adjusting assembly 400 and / or the angle of the suspension 200 is appropriately adjusted according to the actual situation to ensure the best stretching effect.

[0034] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A PC film stretching device with adjustable tension control, comprising a frame (100), a driving and guiding assembly (300) mounted on both ends of the frame (100), a suspension (200) for mounting and adjusting the film roll (500), and a tension adjusting assembly (400) arranged above the middle position of the frame (100); characterized in that: The driving and guiding assembly (300) comprises guiding rollers (301) mounted on the top of both ends of the frame (100) through bearing seats, driving discs (304) connected with the driving discs (305) through belts (303), motors (306) connected with the driving discs (304), and transmission discs (305) fixed on the end of the guiding rollers (301); the suspension (200) comprises traction frames (201) mounted on the top of both ends of the frame (100), shafts (202) movably penetrating the outer end of the traction frames (201), positioning frames (203) symmetrically fixed on the side of the shafts (202), spring limiters (204) fixed on the inner end of the positioning frames (203), and air cylinders (205) for adjusting the angle of the traction frames (201) relative to the frame (100), and the film roll (500) is sleeved on the outside of the shaft (202); the tension adjusting assembly (400) is arranged between a pair of the driving and guiding assemblies (300), and the PC film penetrates between the compression rollers (404) included in the tension adjusting assembly (400).

2. The PC film stretching device with adjustable tension control according to claim 1, wherein, The driving and guiding assembly (300) further comprises mounting plates (302) fixed on the lower part of the side of both ends of the frame (100), and the motors (306) are fixed on the inner side of the mounting plates (302).

3. The PC film stretching device with adjustable tension control according to claim 1, wherein, The main body tail of the air cylinder (205) is movably arranged at the middle transverse part of both ends of the frame (100), and the telescopic end of the air cylinder (205) is movably connected with the inner edge of the lower side of the traction frame (201) through a connecting piece.

4. The PC film stretching device with adjustable tension control according to claim 1, wherein, The end of the spring limiter (204) is provided with a rubber pad, and the rubber pad is attached to the side of the film roll (500).

5. The PC film stretching device with adjustable tension control according to claim 1, wherein, The tension adjusting assembly (400) further comprises side plates (401) fixed on both sides of the frame (100), mounting seats (402) equidistantly fixed on the outer side of the side plates (401), shaft seats (405) movably arranged in the inner part of the mounting seats (402), and screw rods (403) for lifting control of the shaft seats (405), and the shaft seats (405) are matched with both ends of the compression rollers (404).

6. A PC film stretching device with adjustable tension control according to claim 5, wherein, The top end of the screw rod (403) is provided with a handle, and the lower part of the screw rod (403) penetrates the top of the mounting seat (402) to connect the shaft seat (405).

7. The PC film stretching device with adjustable tension control according to claim 1, wherein, The compression rollers (404) are parallel to each other, and the height of the compression rollers (404) is lower than that of the guiding rollers (301).

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